* {
    margin: 0;
    border: 0;
/* 
    -webkit-user-select: none;

    -moz-user-select: none;

    -ms-user-select: none;

    user-select: none; */


}

/* @media screen and (min-width:1400px) {
    html {
        font-size: 14px !important;
    }
}

@media screen and (max-width:500px) {
    html {
        font-size: 14px !important;
    }
} */
html {
    font-size: 14px !important;
}

html {
    height: 100%;
}

body {
    height: 100%;
    /* background-image: url(../images/bodybeijing.jpg); */
}


#cover_layer {
    position: fixed;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.600);
    z-index: 10;
}
#cover_layer_box{
    position: absolute;
    font-size: 2.5rem;
    top: 40%;
    left: 50%;
    transform: translate3d(-50%,-50%,0);
}
#cover_layer_box label{
    width: 100%;
    display: inline-block;
    text-align: center;
    color: #eee;
}
#goal{
    width: 100%;
    font-size: 1.8571rem;
    border-radius: .4286rem;
    background-color: #eee;
    
}
#content_box{
    display: flex;
    /* background-color: pink; */
    height: 100%;
    flex-direction: column; 
}
#progress_bar{
    height: .7143rem;
    background-color: #fff;
}
#progress_c{
    display: block;
    height: .7143rem;
    width: 0%;
    background-color:blanchedalmond;
    border-top-right-radius: .3571rem;
    border-bottom-right-radius: .3571rem;
}
.row {
    height: 30%;
}
#show_words_row{
    position: relative;
    background-color: bisque;
}
#show_words_box{
    position: absolute;
    font-size: 2.8571rem;
    left: 50%;
    top: 50%;
    transform: translate3d(-50%,-50%,0);
}
#show_explain_row{
    padding: 0 3.5714rem;
    flex:1;
    background-color: bisque;
}
#show_explain_box{
    font-size: 1.4286rem;
    text-align: center;
}
#selection_row{
    position: relative;
    background-color: cadetblue;
}
#selection_box{
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    /* padding: .3571rem .7143rem; */
}
#selection_box .botton_bottom{
    text-align: center;
    display: block;
    margin: .7143rem 0;
    padding: .3571rem .7143rem;
}
#selection_box .botton_bottom span{
    display: inline-block;
    font-size: 1.7857rem;
    background-color: #eee;
    border-radius: .4286rem;
    padding: .3571rem .7143rem;
}